Music going through my head

I hear music I like.  Then it goes through my head hour after hour, week after week.  I wake up in the middle of the night and i  hear the music.

I check the internet to find out who played it and when.

I then find the tunes on YouTube and play the video.

It turns out that all four tunes I hear, were hits in the early 1970s

  1. Chirpy chirpy cheep cheep by middle of the road.
  2. Judy teen by Steve Harley and cockney rebel
  3. Behind blue eyes by the who
  4. Mouldy old dough by lieutenant pigeon

At the moment i am hearing no 2.   I have just woken up from one of my recurring nightmares where I am about to fail a college course because I haven't attended the lectures.